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Date: | Tue, 25 Feb 97 13:36:51 EST |
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Our company is currently evaluating the use of Burn-In or Environmental
Stress Screening our assemblies. We are a captive house providing board
assemblies for the process control industry.
Our current ESS cycle is as follows:
Assemblies are elevated to 70°C in 5°C increments per minute.
Then they are dropped to 0°C
The cycle is repeated 12 times.
Power is applied to the assemblies in 5 minute increments, 5 min. on
then 5 min. off.
My questions are:
Do other capitive assembly houses use a similisr test ?
Do contract assembly houses use a similiar test ?
If so, What resuts are expected and obtained ?
Are the tests performed based on some internal or external
requirements ?
Are the results utilized for further actions ?
If so, What actions ?
Your help and feed back is greatly appreciated.
Rich Ackerson
Sr. Ind. Eng.
Elsag Bailey Electronics
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